NA85
NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED
05/07/2026
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Official data from USPTO
SELLAS LIFE SCIENCES GROUP
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Active USPTO registrationType: CombinedOffice: United States
Risk and opportunity diagnosis
Executive reading for naming, filing, and monitoring decisions.
USPTO status
Active USPTO registration
Case type
Application and registration
Recorded events
46
Latest update
05/08/2026
Trademark type
Combined
Nice classes
5, 42
Filing date
09/07/2017
Registration date
02/18/2020
Expiration date
-
Complete case details
Structured fields from the responsible authority and the official record.
Status date
05/07/2026
Last transaction
05/08/2026
Responsible office
United States Patent and Trademark Office
Status code
702
Official register
Principal Register
Filing basis
Intent to use
First use anywhere
12/09/2019
First use in commerce
12/09/2019
Drawing code
3
Owner type
16
Owner location
New York, NY, US
Examiner
NADELMAN, ANDREA KOYNER
Current location
Historical data usage
Mark description
The mark consists of the wording "SELLAS" in stylized dark blue font, appearing on top of the wording "LIFE SCIENCES GROUP" in stylized dark blue font and a light blue rectangular shape with round edges, containing white diagonal stripes with a white dash between the second and third diagonal strip and a white dash between the fifth and sixth diagonal stripe inside said shape, positioned to the left of the wording "LIFE SCIENCES GROUP".
Holders and representatives
Holders
SLSG LIMITED LLC
SLSG LIMITED LLC
Sellas Life Sciences Group Ltd.
Representatives
Karen K. Won MINTZ, LEVIN, COHN, FERRIS, GLOVSKY AND POPEO, P.C
Technical classification
Nice Classes
Class 5Class 42
Vienna Codes
No Vienna codes available.
Goods and services
Class 5
Pharmaceutical and biopharmaceutical preparations for the treatment of cancer
Class 42
Scientific research and development for medicalpharmaceuticalbiopharmaceutical purposes; consulting in the field of medicalpharmaceuticalbiopharmaceutical research and product development; conducting of clinical trialsfor others and development of pharmaceutical productsbiopharmaceutical productsother therapeutic products; development of cancer vaccines and treatment products for cancer
Publications
History of USPTO decisions and trademark events.
46 publications found
C15A
REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.
05/07/2026
APRE
CASE ASSIGNED TO POST REGISTRATION PARALEGAL
05/07/2026
E815
TEAS SECTION 8 & 15 RECEIVED
02/17/2026
TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
12/31/2025
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
12/31/2025
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
12/31/2025
CHAN
APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
12/31/2025
COAR
TEAS CHANGE OF OWNER ADDRESS RECEIVED
12/31/2025
REM1
COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED
02/18/2025
R.PR
REGISTERED-PRINCIPAL REGISTER
02/18/2020
SUNA
NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED
01/14/2020
CNPR
ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED
01/13/2020
SUPC
STATEMENT OF USE PROCESSING COMPLETE
12/30/2019
AITU
CASE ASSIGNED TO INTENT TO USE PARALEGAL
12/28/2019
IUAF
USE AMENDMENT FILED
12/18/2019
EISU
TEAS STATEMENT OF USE RECEIVED
12/18/2019
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
12/12/2019
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
12/12/2019
EXRA
NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED
10/02/2019
EX3G
SOU EXTENSION 3 GRANTED
09/30/2019
EXT3
SOU EXTENSION 3 FILED
09/30/2019
EEXT
SOU TEAS EXTENSION RECEIVED
09/30/2019
ASGN
AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP
07/10/2019
EXRA
NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED
03/30/2019
EX2G
SOU EXTENSION 2 GRANTED
03/28/2019
EXT2
SOU EXTENSION 2 FILED
03/28/2019
EEXT
SOU TEAS EXTENSION RECEIVED
03/28/2019
EXRA
NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED
10/03/2018
EX1G
SOU EXTENSION 1 GRANTED
10/01/2018
EXT1
SOU EXTENSION 1 FILED
10/01/2018
EEXT
SOU TEAS EXTENSION RECEIVED
10/01/2018
NOAM
NOA E-MAILED - SOU REQUIRED FROM APPLICANT
04/03/2018
NPUB
OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED
02/06/2018
PUBO
PUBLISHED FOR OPPOSITION
02/06/2018
NONP
NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED
01/17/2018
ALIE
ASSIGNED TO LIE
01/01/2018
CNSA
APPROVED FOR PUB - PRINCIPAL REGISTER
12/14/2017
XAEC
EXAMINER'S AMENDMENT ENTERED
12/14/2017
GNEN
NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED
12/14/2017
GNEA
EXAMINERS AMENDMENT E-MAILED
12/14/2017
CNEA
EXAMINERS AMENDMENT -WRITTEN
12/14/2017
DOCK
ASSIGNED TO EXAMINER
12/12/2017
MDSC
NOTICE OF DESIGN SEARCH CODE E-MAILED
09/14/2017
NWOS
NEW APPLICATION OFFICE SUPPLIED DATA ENTERED
09/13/2017
NWAP
NEW APPLICATION ENTERED
09/11/2017
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